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NEET 2016
Exam
NEET
Year
2016
Subject
Zoology
Chapter
Molecular Basis of Inheritance

NEET 2016 · Zoology · Molecular Basis of Inheritance

Which of the following is required as inducer(s) for the expression...

Which of the following is required as inducer(s) for the expression of Lac operon?

Options

  1. AGlucose
  2. BGalactose
  3. CLactose
  4. DLactose and galactose

Correct answer

C. Lactose

Step-by-step solution

Lac operon becomes active only after inducing lactose as it is a substrate for the enzyme beta-galactosidase and it also regulates the switching on and off of the operon which cannot be done by glucose and galactose.

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